Roll and brake automatic test system and method

Abstract

A roll and brake automatic test system and method are provided. The system includes a preset roll and brake tester in which a vehicle is disposed at a preset position and which is set to test a travel state of the vehicle. A remote controller then tests travel performance and brake performance by operating the vehicle remotely.

What is claimed is: 
     
         1 . A roll and brake automatic test system, comprising:
 a roll and brake tester in which a vehicle is disposed at a preset position and which is set to test a travel state of the vehicle; and   a remote controller configured to test travel performance and brake performance by operating the vehicle remotely.   
     
     
         2 . The roll and brake automatic test system of  claim 1 , wherein the vehicle includes:
 a transceiver configured to transmit and receive signals to and from the remote controller; and   a vehicle controller configured to operate the vehicle using the signals transmitted and received from the transceiver.   
     
     
         3 . The roll and brake automatic test system of  claim 2 , wherein the vehicle includes a steering system, an accelerator, a transmission, and a brake device, and the vehicle controller is configured to operate each of the steering system, the accelerator, the transmission, and the brake device. 
     
     
         4 . The roll and brake automatic test system of  claim 3 , wherein the brake device includes:
 an oil pump which configured to pump brake oil by a motor;   an ES valve configured to supply the oil to an inlet side of the oil pump based on an opening degree thereof;   an NO valve configured to disposed to supply the oil pumped by the oil pump to a brake pad based on an opening degree thereof; and   a TC valve configured to reduce pressure of the oil pumped by the oil pump based on an opening degree thereof.   
     
     
         5 . The roll and brake automatic test system of  claim 4 , wherein the oil is supplied to the inlet side of the oil pump by closing the TC valve and opening the ES valve, and braking force is produced by opening the NO valve, and pumping the brake oil by operating the oil pump. 
     
     
         6 . The roll and brake automatic test system of  claim 5 , wherein while producing the braking force, the vehicle is stopped by adjusting an opening degree of the TC valve, by duty-controlling the motor that provides rotational force to the oil pump, and adjusting the braking force in accordance with a preset profile. 
     
     
         7 . The roll and brake automatic test system of  claim 6 , wherein when the vehicle is stopped, the motor, which operates the oil pump, is turned off, and the ES valve is closed. 
     
     
         8 . A roll and brake automatic test method, comprising:
 detecting, by a controller, a travel speed of a vehicle disposed at a roll and brake tester;   determining, by the controller, whether a section is a braking section based on the detected travel speed;   supplying, by the controller, brake oil to an inlet side of a pump for producing braking force by opening an ES valve in response to determining that the section is the braking section; and   adjusting, by the controller, the braking force by supplying electric power to a motor for operating the pump by duty-controlling the electric power to be supplied to the motor.   
     
     
         9 . The roll and brake automatic test method of  claim 8 , further comprising:
 opening, by the controller, an NO valve disposed at a discharge side of the pump to supply hydraulic pressure to a brake pad.   
     
     
         10 . The roll and brake automatic test method of  claim 8 , further comprising:
 adjusting, by the controller, the braking force by duty-controlling electric power to be applied to a TC valve disposed to disperse hydraulic pressure formed at a discharge side of the pump to a master cylinder.   
     
     
         11 . The roll and brake automatic test method of  claim 8 , wherein in the supplying of the brake oil, oil accommodated in a master cylinder is supplied to the inlet side of the pump by opening the ES valve.